Knob for pot lid



FIG. 1 is a perspective view of a knob for pot lid showing my new design, the broken line showing of a pot cover is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a side elevational view thereof, all other side views being identical. 

The ornamental design for a knob for pot lid, as shown and described. 